<html>

<head>
    <script src="vue.js">
    </script>
</head>

<body>
    <div id="app">
        <p>
            {{msg}}
        </p>
    </div>
    <script>
        var vue = new Vue({
            el: '#app',
            data: {
                msg: "hello   Vue.js",
            }
        });
    </script>
</body>

</html>